Eating Disorders vs. Obsessive-Compulsive Disorder (OCD)

Key Differences

Restrictive eating
Eating Disorders: Core
Obsessive-Compulsive Disorder (OCD): Not Characteristic
Explanation: In eating disorders, limiting food intake is a central and persistent concern, while it is not a typical feature of OCD on its own.
Purging behaviours
Eating Disorders: Core
Obsessive-Compulsive Disorder (OCD): Not Characteristic
Explanation: Purging is a key eating-disorder behaviour tied to food, weight, or body distress, rather than a characteristic OCD symptom.
Fear of gaining weight
Eating Disorders: Core
Obsessive-Compulsive Disorder (OCD): Not Characteristic
Explanation: A persistent fear of weight gain strongly points toward eating-disorder concerns, whereas OCD fears are usually broader and not specifically weight-focused.
Distress About Your Body Shape or Weigh
Eating Disorders: Core
Obsessive-Compulsive Disorder (OCD): Not Characteristic
Explanation: Ongoing distress about body shape or weight is central in eating disorders and is not a defining feature of OCD.
Skin picking
Eating Disorders: Associated
Obsessive-Compulsive Disorder (OCD): Core
Explanation: Skin picking may occur alongside eating-disorder distress, but in OCD it is more likely to be part of a central repetitive or compulsive pattern.

Key Similarities

Symptom How it is similar
Perfectionism Both eating disorders and OCD can involve intense standards, fear of mistakes, and difficulty feeling that things are acceptable or complete.
Compulsive or repetitive behaviours Both can involve repeated behaviours that feel difficult to resist and are often used to reduce distress or regain a sense of control.
Strong need to be in control Both can involve a persistent need for control, which may show up through routines, rules, checking, or rigid patterns of behaviour.
Intrusive unwanted thoughts Both can involve unwanted thoughts that feel distressing and hard to dismiss, even when the person does not want to have them.
Feeling constantly anxious or on edge Both can involve ongoing anxiety and tension, which can make daily life feel mentally and emotionally exhausting.
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